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