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