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