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