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