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