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