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