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