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