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