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