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