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