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