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