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