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