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