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