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