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