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