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