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