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