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