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