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)(11,12)(13,16)(14,15)(17,18,22,27)(19,29,25,24)(20,31,32,30)(21,28,23,26)(1,3,5,4)(2,6,8,7)(9,10)(11,12)(13,16)(14,15)(17,19)(18,24)(20,26)(21,30)(22,25)(23,31)(27,29)(28,32)(9,11,12,10,14,16,13,15)(17,20,21,24,22,32,23,29)(18,25,26,30,27,19,28,31)(1,4,5,3)(2,7,8,6)(9,12,14,13)(10,11,15,16)(17,21,22,23)(18,26,27,28)(19,30,25,31)(20,29,32,24)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.