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