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