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