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