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)(17,18,21,24)(19,25,27,22)(20,23,30,29)(26,32,28,31)(34,40)(36,45)(41,42)(43,47)(2,3)(7,9)(8,10)(14,15)(17,18)(19,22)(20,23)(21,24)(25,27)(26,31)(28,32)(29,30)(33,34,39,40)(35,41,38,42)(36,46,45,37)(43,48,47,44)(1,2,6,3)(4,7,12,9)(5,8,13,10)(11,14,16,15)(17,18)(19,22)(20,23)(21,24)(25,27)(26,31)(28,32)(29,30)(33,35,39,38)(34,41,40,42)(36,43,45,47)(37,44,46,48)(1,3,6,2)(4,9,12,7)(5,10,13,8)(11,15,16,14)(17,19,21,27)(18,22,24,25)(20,28,30,26)(23,32,29,31)(33,36)(34,37)(35,43)(38,47)(39,45)(40,46)(41,44)(42,48)(1,4)(2,7)(3,9)(5,11)(6,12)(8,14)(10,15)(13,16)(17,18)(19,22)(20,29)(21,24)(23,30)(25,27)(26,32)(28,31)(33,37)(34,36)(35,44)(38,48)(39,46)(40,45)(41,43)(42,47) involution — undirected(1,5,6,13)(2,8,3,10)(4,11,12,16)(7,14,9,15)(17,20,21,30)(18,23,24,29)(19,26,27,28)(22,31,25,32)(33,38,39,35)(34,42,40,41)(36,43,45,47)(37,44,46,48)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.