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