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