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