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