Modes from brightest to darkest:
Lydian - Ionian - Mixolydian - Dorian - Aeolian - Phrygian - Locrian
Having said this, take a look at every position/shape in a 3NPS, then take one octave of every string and you’ll see the pattern of modes going from darkest to brightest.
For example, let’s take the 1st position/shape of G major/Ionian scale and take the 1st octave of the scale starting from the 6th string, you’ll see that this is the Ionian scale. Next, take another octave of the scale but now starting from the 5th string, you’ll see that this is the Lydian scale. Continue the pattern and it’ll just cycle from the darkest to brightest.
Another one for easier memorization of 3NPS per shape/position. 3NPS comprises of 3 patterns namely, 1-2-4, 1-3-4, and 1-2-4/1-3-4 (stretch). Just a side note the numbers were the fretting finger number with 1 as the index finger, 2 the middle finger, 3 the ring finger and 4 as the pinky. To continue, the cycle just forms this pattern, 3 times of 1-2-4/1-3-4 (stretch) followed by 2 times of 1-2-4 and followed by 2 times of 1-3-4. This is applicable on every pattern/shape and it just cycles through it.
For example, let’s take the G major/Ionian scale 1st position. The pattern will go like this in fret numbers, E string 3-5-7, A string 3-5-7, D string 4-5-7, G string 4-5-7, B string 5-7-8 and lastly High E string 5-7-8. If you’ll take a closer look the pattern is as mentioned above which is 2 times of 1-2-4/1-3-4 (stretch) followed by 2 times of 1-2-4 and followed by 2 times of 1-3-4.
Let’s, take another example this time the 2nd position of G major/Ionian scale. The pattern will go like this in fret numbers, E string 5-7-8, A string 5-7-9, D string 5-7-9, G string 5-7-9, B string 7-8-10, and lastly High E string 7-8-10. If we’ll refer to the pattern, it’ll look like this, 1 time 1-3-4, 3 times 1-2-4/1-3-4 (stretch), and 2 times 1-2-4.
Hoping that this is not confusing. If only I can have a visual example this will be clearer. Thank you!