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