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