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