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