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