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