One vertex per element, one color per generator, with an edge from x to x·s.
(2,5)(6,8)(11,15)(14,16)(17,18)(19,23)(20,31)(21,24)(22,26)(25,32)(27,34)(28,37)(29,43)(30,38)(33,40)(35,42)(36,41)(39,45)(44,46)(47,48) involution — undirected(1,2,4,5)(3,6,7,8)(10,13)(11,15)(17,19,22,28)(18,23,26,37)(20,29,32,41)(21,30,34,42)(24,38,27,35)(25,36,31,43)(33,44,45,48)(39,47,40,46)(1,3,4,7)(2,6,5,8)(9,10)(11,14)(12,13)(15,16)(18,24)(19,28)(20,32)(21,34)(23,35)(25,40)(26,27)(31,39)(36,47)(37,38)(43,46)(44,48)(2,5)(6,8)(10,13)(14,16)(17,20)(18,25)(19,29)(21,33)(22,32)(23,36)(24,39)(26,31)(27,40)(28,41)(30,44)(34,45)(35,46)(37,43)(38,47)(42,48) involution — undirected(9,11,12,15)(10,14,13,16)(18,26)(19,28)(20,32)(24,27)(30,42)(33,45)(36,43)(46,47)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.