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