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