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