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