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