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