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