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