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)(17,18,23,24)(19,22,21,20)(25,26,29,31)(27,30,28,32)(1,2,5,3)(4,6,8,7)(9,11)(10,14)(12,15)(13,16)(17,19,23,21)(18,20,24,22)(25,27,29,28)(26,30,31,32)(2,3)(6,7)(11,16)(14,15)(17,20,23,22)(18,19,24,21)(25,28,29,27)(26,30,31,32)(1,3,5,2)(4,7,8,6)(9,11)(10,15)(12,14)(13,16)(17,21,23,19)(18,20,24,22)(25,26)(27,30)(28,32)(29,31)(1,4)(2,6)(3,7)(5,8)(9,12,13,10)(11,14,16,15)(17,22,23,20)(18,19,24,21)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.