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