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