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