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