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