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