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