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