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