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