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