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