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