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