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