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