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