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