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