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