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