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