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