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)(17,18)(19,25)(20,22)(21,24)(23,27)(26,32)(28,30)(29,31)(2,7)(3,12)(4,10)(14,15)(17,19)(18,23)(20,25)(21,29)(22,27)(24,32)(26,30)(28,31)(33,34)(35,40)(36,37)(38,39)(41,45)(42,46)(43,48)(44,47) involution — undirected(2,7)(4,10)(8,11)(13,16)(21,30)(24,28)(26,29)(31,32)(34,39)(36,45)(40,47)(42,48) involution — undirected(1,3,6,12)(2,8,7,11)(4,13,10,16)(5,15,9,14)(17,20,22,18)(19,25,27,23)(21,28,30,24)(26,32,29,31)(33,35)(34,40)(36,42)(37,46)(38,44)(39,47)(41,43)(45,48)(1,4,6,10)(2,9,7,5)(3,13,12,16)(8,14,11,15)(17,21)(18,24)(19,26)(20,28)(22,30)(23,31)(25,32)(27,29)(33,36)(34,41)(35,42)(37,39)(38,45)(40,43)(44,48)(46,47)(1,5,6,9)(2,10,7,4)(3,14,12,15)(8,13,11,16)(17,19)(18,25)(20,23)(21,26)(22,27)(24,32)(28,31)(29,30)(33,37,38,41)(34,36,39,45)(35,43,44,46)(40,48,47,42)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.