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