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