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