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