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