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