I don't know how much of this you've done before so if I tell you something you already know, then great!
I'd cut me a piece of good quality 3/8 to 1/2" plywood to make a backboard, slide it behind those CAT cables, bolt it in then screw those snap-in brackets to the back board. That backboard will also give you a place to dress and tie down those cables as you will likely have to do in order to fit them in NEATLY.
If the cables are already ID'd / numbered (i.e., room #, etc.), then great. If not, you'll want to do that before you start arranging, laying in and punching down.
Fluke has toners to ID cables for $900 but I have this $85 Fluke that works for me. ==>>
Fluke Networks 26000900 Pro3000 Tone Generator and Probe Kit with SmartTone Technology
When it's all in, tested, dressed and the ports ID'd on the face of the blocks LEGIBLY, a nice schematic or port call-out sheet either laminated or placed inside a sheet protector and fastened to the INSIDE of the panel cover would be icing on the cake.
You'll likely have a simple vertical list with port # on the left column and to the right another column with the room # or such, but you get the idea.