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