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