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