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)(17,18,21,24)(19,25,27,22)(20,28,30,23)(26,31,29,32)(6,8)(9,11,13,12)(10,14,16,15)(17,19,21,27)(18,22,24,25)(20,29,30,26)(23,32,28,31)(5,6,7,8)(9,11,13,12)(10,15,16,14)(17,18)(19,22)(20,23)(21,24)(25,27)(26,31)(28,30)(29,32)(1,2,3,4)(9,12,13,11)(10,15,16,14)(17,19)(18,22)(20,29)(21,27)(23,32)(24,25)(26,30)(28,31)(9,10)(11,15)(12,14)(13,16)(17,20,21,30)(18,23,24,28)(19,26,27,29)(22,31,25,32)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.