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