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