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