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