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