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