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