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