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