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