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