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