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