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