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