It's like 3 single-color matrices combined, except you still only have 8 anodes (if common anodes). Then 8 cathodes per color (or vice versa) for 32 pins.
Just google a pinout.
That would probably work out with 3 shift registers or 3 MAX7219's if you don't have 32 pins to spare.
Or if you were having trouble finding something like these, then here:
retired but gives you an idea