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