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