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