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