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