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