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