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