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