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