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