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