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