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