One vertex per element, one color per generator, with an edge from x to x·s.
(1,2,5,8)(3,7,4,6)(9,10,15,11)(12,14,16,13)(17,18,23,27)(19,24,25,31)(20,30,32,29)(21,26,22,28)(1,3,5,4)(2,6,8,7)(9,11,15,10)(12,13,16,14)(17,19)(18,24)(20,26)(21,29)(22,30)(23,25)(27,31)(28,32)(9,12,14,11,15,16,13,10)(17,20,22,24,23,32,21,31)(18,25,26,30,27,19,28,29)(1,4,5,3)(2,7,8,6)(9,13,15,14)(10,12,11,16)(17,21,23,22)(18,26,27,28)(19,29,25,30)(20,31,32,24)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.