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