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