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