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