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