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