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