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