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