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