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