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