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