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