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