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