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