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