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