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