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