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