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