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