New Shelf Cabling Guidance?

[AlexMaldonado1]

Hi all, my customer is looking for a diagram to help them properly cable their new shelves.  Below is a picture of their config currently.  Does anyone know of a tool or app we can use to generate a diagram to help them cable their new shelves?

[k4azy]

For additional context, here's what the existing cabling looks like (the FAS2820 & 3x DS212C shelves).