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