One vertex per element, one color per generator, with an edge from x to x·s.
(1,2,5,7)(3,8,4,6)(9,10,14,13)(11,16,12,15)(17,18,22,23,21,26,19,25)(20,24,29,30,28,32,27,31)(1,3,5,4)(2,6,7,8)(9,10,14,13)(11,16,12,15)(18,23)(19,22)(20,28)(24,31)(25,26)(30,32)(1,4,5,3)(2,6,7,8)(9,11,14,12)(10,15,13,16)(17,19)(20,27)(21,22)(23,25)(28,29)(30,31)(9,12,14,11)(10,15,13,16)(17,20,21,28)(18,24,26,32)(19,27,22,29)(23,30,25,31)(9,13,14,10)(11,16,12,15)(20,28)(24,32)(27,29)(30,31)A Cayley diagram is a choice, not a fact about the group. Another drawing of this group — in a book, or on a different generating set — may look nothing like this one.