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