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