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