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