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