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