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