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