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