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