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