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