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