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