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