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