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