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