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