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