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