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