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