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