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