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