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