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