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