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