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