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