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)(15,20,25,34)(16,28,31,37)(17,22,18,32)(21,29,36,30)(24,38,39,44)(26,35,27,42)(33,40,43,41)(1,2)(3,4)(5,7,8,12)(6,9,10,11)(13,15)(14,20)(16,24)(17,26)(18,27)(19,25)(21,33)(22,35)(23,34)(28,38)(29,40)(30,41)(31,39)(32,42)(36,43)(37,44)(2,4)(13,16,19,31)(14,21,23,36)(15,24,25,39)(17,30,18,29)(20,33,34,43)(22,37,32,28)(26,41,27,40)(35,44,42,38)(6,10)(9,11)(15,25)(20,34)(24,39)(26,27)(33,43)(35,42)(38,44)(40,41) involution — undirected(2,4)(7,12)(9,11)(13,17,19,18)(14,22,23,32)(15,26,25,27)(16,29,31,30)(20,35,34,42)(21,28,36,37)(24,40,39,41)(33,38,43,44)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.