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