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