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