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