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