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