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