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