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