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