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