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)(18,23)(24,37)(25,38)(26,35)(30,42)(39,41)(40,46)(43,48)(2,6)(7,8)(9,11)(10,13)(12,16)(14,15)(17,18,21,23)(19,24,28,37)(20,30,32,42)(22,35,34,26)(25,36,38,33)(27,43,31,48)(29,46,45,40)(39,47,41,44)(1,3,5,4)(2,7,6,8)(10,14)(11,16)(17,19)(18,24)(20,31)(21,28)(22,29)(23,37)(25,41)(26,40)(27,32)(30,48)(33,47)(34,45)(35,46)(36,44)(38,39)(42,43)(1,4,5,3)(2,8,6,7)(10,14)(13,15)(17,20)(18,25)(19,27)(21,32)(22,36)(23,38)(24,39)(26,42)(28,31)(29,47)(30,35)(33,34)(37,41)(40,48)(43,46)(44,45)(2,6)(7,8)(10,14)(13,15)(19,28)(20,32)(24,37)(25,38)(29,45)(30,42)(33,36)(40,46) 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.