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