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