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