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