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