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