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