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