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