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