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