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