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