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