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