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)(19,23)(20,24)(21,22)(25,27)(26,31)(28,32)(29,30)(33,34,39,40)(35,37,36,41)(38,46,47,42)(43,48,44,45)(1,2,6,3)(4,7,11,9)(5,8,13,10)(12,14,16,15)(17,19,22,25)(18,23,21,27)(20,26,30,28)(24,31,29,32)(34,40)(37,41)(42,46)(45,48)(4,11)(5,13)(7,9)(8,10)(18,21)(19,25)(24,29)(26,28)(33,35,39,36)(34,41,40,37)(38,44,47,43)(42,45,46,48)(1,3,6,2)(4,7,11,9)(5,10,13,8)(12,14,16,15)(17,20)(18,24)(19,26)(21,29)(22,30)(23,31)(25,28)(27,32)(33,36,39,35)(34,37,40,41)(38,44,47,43)(42,45,46,48)(1,4)(2,7)(3,9)(5,12)(6,11)(8,14)(10,15)(13,16)(17,19)(18,23)(20,28)(21,27)(22,25)(24,32)(26,30)(29,31)(33,37)(34,36)(35,40)(38,45)(39,41)(42,44)(43,46)(47,48) involution — undirected(1,5,6,13)(2,8,3,10)(4,12,11,16)(7,14,9,15)(17,21,22,18)(19,27,25,23)(20,29,30,24)(26,32,28,31)(33,38)(34,42)(35,43)(36,44)(37,45)(39,47)(40,46)(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.