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