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