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