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