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)(15,19)(16,20)(17,21)(18,22)(23,30)(24,31)(25,32)(26,34)(27,35)(28,36)(29,37)(33,39)(38,42)(40,43)(41,44) involution — undirected(6,10)(7,8)(11,12)(13,15,18,25)(14,19,22,32)(16,23,27,39)(17,28,29,24)(20,33,35,30)(21,36,37,31)(26,40,41,38)(34,42,44,43)(2,4)(5,6,9,12)(7,10,8,11)(13,16)(14,20)(15,23)(17,26)(18,27)(19,30)(21,34)(22,35)(24,38)(25,39)(28,40)(29,41)(31,42)(32,33)(36,43)(37,44)(5,7,9,8)(6,10,12,11)(13,17,18,29)(14,21,22,37)(15,24,25,28)(16,26,27,41)(19,31,32,36)(20,34,35,44)(23,38,39,40)(30,42,33,43)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.