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