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