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