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