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