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