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