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