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