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