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