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