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