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