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