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