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