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