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