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