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