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