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)(17,18,22,28)(19,29,33,24)(20,26,36,42)(21,27,23,38)(25,37,43,35)(30,40,31,44)(32,46,34,41)(39,47,45,48)(1,2)(3,6)(4,5)(7,8)(9,10)(11,15)(12,14)(13,16)(17,19)(18,24)(20,30)(21,32)(22,33)(23,34)(25,39)(26,44)(27,41)(28,29)(31,36)(35,47)(37,48)(38,46)(40,42)(43,45) involution — undirected(9,11)(10,13)(12,16)(14,15)(17,20,22,36)(18,25,28,43)(19,30,33,31)(21,35,23,37)(24,39,29,45)(26,27,42,38)(32,47,34,48)(40,46,44,41)(2,5)(6,8)(11,16)(13,15)(17,20)(18,26)(19,31)(21,37)(22,36)(23,35)(24,40)(25,38)(27,43)(28,42)(29,44)(30,33)(32,47)(34,48)(39,41)(45,46) involution — undirected(1,3,4,7)(2,6,5,8)(10,14)(13,15)(17,21,22,23)(18,27,28,38)(19,32,33,34)(20,35,36,37)(24,41,29,46)(25,42,43,26)(30,47,31,48)(39,40,45,44)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.