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