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