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