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