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