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