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