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