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