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