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