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