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