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