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