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