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