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