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