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