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