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