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