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