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