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