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