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