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