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