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