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)(19,22)(20,28)(21,25)(23,27)(24,29)(26,31)(30,32)(33,34)(35,43)(36,40)(37,47)(38,42)(39,44)(41,45)(46,48) involution — undirected(3,9)(7,13)(10,15)(14,16)(17,19)(18,22)(20,26)(21,27)(23,25)(24,30)(28,31)(29,32)(33,35,38,44)(34,39,42,43)(36,45,46,37)(40,47,48,41)(2,6)(7,13)(8,11)(14,16)(17,19,21,27)(18,23,25,22)(20,26,29,32)(24,31,28,30)(33,34,38,42)(35,39,44,43)(36,40,46,48)(37,41,45,47)(1,2)(3,7)(4,8)(5,6)(9,13)(10,14)(11,12)(15,16)(17,19)(18,23)(20,26)(21,27)(22,25)(24,31)(28,30)(29,32)(33,34)(35,39)(36,40)(37,41)(38,42)(43,44)(45,47)(46,48) involution — undirected(1,3,5,9)(2,7,6,13)(4,10,12,15)(8,14,11,16)(17,18)(19,23)(20,28)(21,25)(22,27)(24,29)(26,30)(31,32)(33,36,38,46)(34,40,42,48)(35,37,44,45)(39,41,43,47)(1,4)(2,8)(3,10)(5,12)(6,11)(7,14)(9,15)(13,16)(17,20,21,29)(18,24,25,28)(19,26,27,32)(22,30,23,31)(33,37)(34,41)(35,36)(38,45)(39,40)(42,47)(43,48)(44,46)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.