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