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