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