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