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