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