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