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