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