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