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