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