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