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