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