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