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