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