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