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