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