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)(21,25,29,32)(27,28,30,31)(2,5)(6,8)(10,14)(11,12)(17,19,22,23)(18,24,26,20)(21,27,29,30)(25,31,32,28)(9,11,13,12)(10,15,14,16)(17,20,23,26,22,24,19,18)(21,28,30,32,29,31,27,25)(1,3,4,7)(2,6,5,8)(11,12)(15,16)(17,21,22,29)(18,25,26,32)(19,27,23,30)(20,28,24,31)(9,12,13,11)(10,15,14,16)(21,29)(25,32)(27,30)(28,31)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.