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