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