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