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)(19,24)(20,26)(21,32)(22,27)(23,25)(28,31)(29,30)(1,2)(3,7)(4,5)(6,8)(9,10)(11,14)(12,15)(13,16)(17,19)(18,24)(20,27)(21,29)(22,26)(23,28)(25,31)(30,32) involution — undirected(2,5)(6,7)(18,25)(19,28)(21,27)(26,30) involution — undirected(1,2)(3,6)(4,5)(7,8)(9,11,13,12)(10,14,16,15)(17,20,23,29)(18,26,25,30)(19,27,28,21)(22,31,32,24)(1,2)(3,6)(4,5)(7,8)(17,21,23,27)(18,22,25,32)(19,29,28,20)(24,26,31,30)(1,3)(2,6)(4,8)(5,7)(9,12,13,11)(10,15,16,14)(17,22)(18,27)(19,30)(20,31)(21,25)(23,32)(24,29)(26,28)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.