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