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