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