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