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