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