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