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