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