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