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