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