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