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