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