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