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