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