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