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