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