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