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