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