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