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