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