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