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