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