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