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