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