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