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