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