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