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