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