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