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)(11,13)(12,14)(15,16)(17,18,24,30,22,27,23,28)(19,29,21,20,31,25,26,32)(1,3,5,8)(2,6,4,7)(9,10)(11,15)(12,14)(13,16)(17,19)(18,25)(20,28)(21,24)(22,31)(23,26)(27,29)(30,32)(9,11)(10,13)(12,16)(14,15)(17,20,22,32)(18,26,27,21)(19,30,31,28)(23,25,24,29)(1,2,5,4)(3,7,8,6)(11,16)(13,15)(17,21,22,26)(18,20,27,32)(19,24,31,23)(25,28,29,30)(1,4,5,2)(3,7,8,6)(10,14)(13,15)(18,27)(19,31)(21,26)(28,30)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.