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