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