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