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