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