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