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