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