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