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