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