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