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