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