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