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