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