One vertex per element, one color per generator, with an edge from x to x·s.
(5,6)(7,10)(8,9)(11,12)(15,25)(16,30)(17,18)(20,26)(21,37)(22,23)(27,41)(28,29)(31,38)(32,33)(34,44)(35,36) involution — undirected(2,4)(6,9)(10,12)(13,14,19,24)(15,26,28,36)(16,31,33,37)(17,23,18,22)(20,29,35,25)(21,30,38,32)(27,34,41,44)(39,43,42,40)(5,7,8,11)(6,10,9,12)(13,15,17,25,19,28,18,29)(14,20,22,26,24,35,23,36)(16,27,30,39,33,41,32,42)(21,34,37,40,38,44,31,43)(1,2,3,4)(13,16,17,30,19,33,18,32)(14,21,22,37,24,38,23,31)(15,27,25,39,28,41,29,42)(20,34,26,40,35,44,36,43)(6,9)(10,12)(15,28)(20,35)(25,29)(26,36)(27,41)(34,44)(39,42)(40,43) 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.