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