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