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