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