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