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